What is a system?, A single object, A set of things, A planet, A type of rock, Which part of Earth contains all metals, rocks, and ground?, Hydrosphere, Geosphere, Atmosphere, Biosphere, Which part of Earth contains all the water?, Geosphere, Biosphere, Hydrosphere, Atmosphere, Which layer surrounds Earth and is made of gases?, Geosphere, Hydrosphere, Atmosphere, Biosphere, Which sphere contains all living things on Earth?, Geosphere, Biosphere, Hydrosphere, Atmosphere, The oceans, rivers, and lakes are part of which sphere?, Hydrosphere, Biosphere, Atmosphere, Geosphere, Rocks, mountains, and soil belong to:, Geosphere, Biosphere, Hydrosphere, Atmosphere, Air that surrounds Earth is called:, Geosphere, Atmosphere, Hydrosphere, Biosphere, All plants, animals, and humans are found in which sphere?, Geosphere, Biosphere, Hydrosphere, Atmosphere, A set of things that work together as a whole can be called:, Atmosphere, System, Hydrosphere, Biosphere.

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